I am going out of the country where is costs quite a bit to receive calls. However, I added global data package to my plan. I however was informed by VZW customer rep. that if i receive a call even if I do not pick up, I get charged the roaming fee per minute. So, how do I turn off data connection so that my phone does not ring, but still be able to use data on the phone. I have a motorola razr. Any app or setting that can do this?